Few animals look as calm and harmless as a hippo lounging in the water, but appearances can be deceiving. Dangerously so, in ...

While the birth is sparking joy, infant mountain gorillas are vulnerable, and twins can be twice as hard for a mother to take ...

Decades ago, India’s tigers were on the brink of extinction. Slowly, their numbers have rebounded. But that ecological success has prompted a dire problem—and a race to save many of them from genetic ...

As scientists question the rise in early colon cancer cases, a new study is offering some potential answers. Colored scanning electron micrograph (SEM) of a macrophage white blood cell (center) that ...

"She took my breath away the first time I saw her," photographer Andy Rouse said ...